Journal-support for centrifugal machines.



No. 879,115. PATENTED FEB. 11, 1908. K. K. McLBOD.

JOURNAL SUPPORT FOR'GENTRIFUGAL MACHINES.

APPLICATION PILED JUNE 7,1907.

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JOURNAL SUPPORT FOR GENTRIPUGAL MACHINES.

' APPLICATION FILED JUNE 7.1907.

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KENNETH K. McLEOD, OF WHITE BEAR LAKE, MINNESOTA.

JOURNAL-SUPPORT FOR CENTRIFUGAL MAGI I I NES.

Specification of Letters Patent.

Patented Feb. 11, 1908.;

Original application filed August 7' 1905. Serial No. 272.986. Dividedand this application filed June 7- 1907- i Serial No 377,830.

To all whom it may concern.

Be it known thetl, KENNETH K. MoLEoD, a-citiz'en of the United States,residing at White Bear Lake, in the county of Ramsey and State ofMinnesota, have invented a new and useful Improvement inJournal-Supports for Centrifugal Machines, of which the following is aspecification.

My invention relates to an improved jour nal support for centrifugalmachines and is divided from the subject-matter of application SerialNo. 272,986, filed August 7, 1905, by myself. i v

The primary object of this invention is a device of its kind which isadapted to rigidly support the upper and lower journals of the uprightshaft winch carries the separating bowl of a centrifugal machine sothatsaid bowl will assume that position in which it will run steadily andwithout vibration and thereby reduce the amount of friction between itsjournal bearing surfaces.

'Alnong further objects are simplicity of construction, eileotiveness 1nuse and adv justability of its parts.

In the accompanying drawings forming part of this specification, Figure1 is a vertical sectional view ofmyinventionshowingthe separating bowland its drive shaft in full; Fig. 2 is a front view; Fig. 3 is anenlarged side view of the journal sleeve and part of the upright shaft,and Fin. 4 is an enlarged detail sectional view of the lower journal andj ournal su port. In t 1e drawings A represents a portion of the'frameof a centrifugal machine used in connection with a cream separator andpro vided with a bowl receptacle 2 and a journal sppport 3. In thejournal support is a VI--- tica. opening 4 through which a ournalhearing sleeve 5 )asses loosely. This sleeve is u tube, iorn1e( with ashoulder 6 resting upon the support 3, and internally threaded at 7 uponits lower end to receive a step 4.5 bearing 8. A lock nut 9 fastened onthe step bearing and im inging against the lower l. of the journalsllaeve at a slight distance our. the lower surface 10 of the support 3't he journal sleeve to'swing on the {1% the upright'shaft C thereinposition which causes it to re- -...c.iidily and without vibration abouts own axis.

The upper end of the journal sleeve carries it e journal bearingll andis formed with' a conical upper shoulder 0r 'cone.12. An an- .ner wrenchmay be engaged therewith to turn it upon the sleeve and thus expand andincrease the tension of the collar B within the cylindrical wall or seat17. The expansible collar does not specifically form the subjectmatterof this application and I hereby disclaim it as art thereof. Other formsof ex pansible co lars may, when desired be used in. its place and whereany reference is made to itin this specification and the accompanying iclai1ns,'it 1s only in its broad sense as an (lief ment ofits kind. Thecollar shownis provided with spring serrations or bowed lingers 19projecting from opposite edges of the plate B and bent at theirextremities so as -to slide on the surfaces of the cones or shoulders 12and 14 when the latter are adjusted. The cone or shoulder 14 is lockedwhen'adjusted by means of a nut 20. 1 The vertical'shaft C supports acream se arator bowl 1) upon its upper end, in tie bowl receptacle 2 andis adapted to revolve in the journal bearing 11 and step bearing 8.

The lower'end of this shaft is seated upon a ball 21 which is carried bythe step bearing. Between the ends of the shaft is a worm pinion 22which meshes with a worm gear 23. This gear is carried by a shaft 24which is journaled at 25 upon the frame and carries a drive sprocket .26and drive chain, not shown, or any other suitable actuating mechanism.The journal sleeve 5 is slotted at 27 to permit the worm gear 23 toengage the worm pinion. The sleeve as shown asses freely through anopening29 in the rame A.

In use the-lower hearing Ina be adjusted vertically by turnin the stepcaring 8 and for this purpose sai step hearing is formed with acap nut28. After it adjusted. to relse the separator howl D clear of thejournal bearing 11 it is locked by means of the nut 9 which impingesagainst the lower end of the journal sleeve. tension of the collarwithin. the cylindrical opening 17 of the upper support the cone 14 Toadjust the which it runs steadily and without vibration.

This is particularly advantageous,. for in machines of the characterdescribed a high number of revolutions such as from eight to tenthousand per minute are necessary to separate cream from'rnilk andshould the end threaded and provide machine not stand vertically and theshaft not be free to assume that position in which it will run steadily,frictlon between the bearing surfaces soon renders the machineinoperative. This objection is entirely overcome with my inventlon.

Having described my invention, what I claim as new and desire to protectby Letters Patent, is

1. In a machine of the class set forth, supports having openingsthere-through, a sleeve passing vertically through said open ings, itslower end having a shoulder resting freely upon the lower support, andits upper with a stationary cone, an adjusting cone on the upper end ofsaid sleeve, means for locking said adjusting cone in place, a resilientcollar impinged between said cones and resting in the upper opening tolaterally support the upper end 0' said sleeve, bearings in the upperand lower ends of said sleeve, and an upright shaft in said bearings.

2. In a machine of the class set forth, a sleeve having a shoulder onits lower end, a

frame below said shoulder and sup 'orting the upper end of said sleeve,a step iiearing in the lower end of said sleeve, a journal bearing inthe upper end of said sleeve, a lock nut below said frame and holdingsaid step bearing in said sleeve, a' vertical shaft revolving upon saidstep bearing and in said journal'bearing, and a spring between the upperend of the sleeve and frame, permitting said u er end to move laterallyupon said shou er and the shaft to assume that position in which it willrevolve without vibration.

3. A device of the class set forth, consisting of a pair of supportshavin .vertical openings 4 and 17 passing theret 'ou'gh, a

substantially vertical sleeve passing freely throu h said openings andprovided with a shoul er 6 above its lower end and resting upon thelower support and with a cone 12- upon its upper end, another cone 14threaded below the upper cone on said sleeve, a lock nut 20 adapted totighten against the lower cone, an expansible collar in the openin 17impinging against .the surface of sai cones and permitting the upper endof said sleeve to move laterally, a'bearing 11 supported on theupper'end of said sleeve, and a vertical shaft in said bearing, for thepurposes specified. v

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

KENNETH K. MGLEOD.

